20277
28-Jun-16
1 of 4
WOOD MANUFACTURING
Design a statistical process control
system to monitor and improve quality
in wood manufacturing
level:
6
credit:
10
planned review date:
September 2005
sub-field:
Wood Processing Technology
purpose:
People credited with this unit standard are able to: design a
system to measure process capability for a selected wood
manufacturing operation; design a sampling system to
determine attribute variance within a selected wood
manufacturing process stage; analyse results from a
sampling system, apply control limits and determine whether
process capability meets customer requirements for a
specified wood manufacturing process stage; and review the
sampling system and recommend improvements to ensure
customer requirements are met consistently.
entry information:
Recommended: Unit 20265, Develop and evaluate quality
management techniques applied in wood manufacturing, or
demonstrate equivalent knowledge and skills.
accreditation option:
Evaluation of documentation and visit by NZQA and industry.
moderation option:
A centrally established and directed national moderation
system has been set up by Forest Industries Training.
special notes:
1
Definitions
Wood manufacturing operation means a solid wood
processing, wood product manufacturing, or plywood
and laminated veneer lumber operation.
Manufacturing process stage refers to a process stage
and may include but is not limited to debarking, sawing,
re-sawing, moulding, shaping, defecting, finger jointing,
laminating, machining, peeling, lay up, drying, sanding,
and packaging.
 New Zealand Qualifications Authority 2016
20277
28-Jun-16
2 of 4
WOOD MANUFACTURING
Design a statistical process control
system to monitor and improve quality
in wood manufacturing
2
Assessment for this unit standard will be based on
analysis and comparison of a specified industry
workplace with business concepts covered in this unit
standard.
Elements and Performance Criteria
element 1
Design a system to measure process capability for a selected wood manufacturing
operation.
performance criteria
1.1
System includes process flow diagram for the selected wood manufacturing
process.
Range:
1.2
process flow diagram to include - detailed decision making
activities, adoptions of standards and specifications, reporting
mechanisms, diagramatic description of the process.
System identifies sources of variability and defines the quality outcomes
required to ensure wood product conformance.
Range:
variability includes
expectations.
-
raw
materials,
process,
customer
element 2
Design a sampling system to determine attribute variance within a selected wood
manufacturing process stage.
performance criteria
2.1
Sampling system defines appropriate attributes for measurement for the
specified wood manufacturing process stage.
 New Zealand Qualifications Authority 2016
20277
28-Jun-16
3 of 4
WOOD MANUFACTURING
Design a statistical process control
system to monitor and improve quality
in wood manufacturing
2.2
Sampling system defines the sample size and frequency to ensure statistical
integrity of the system.
2.3
Sampling system defines data gathering methodologies to be applied in the
wood manufacturing operation to ensure statistical integrity.
2.4
Sampling system defines reporting and interpreting mechanisms in the wood
manufacturing operation that will ensure statistical integrity.
element 3
Analyse results from a sampling system, apply control limits and determine whether
process capability meets customer requirements for a specified wood manufacturing
process stage.
performance criteria
3.1
Analysis compares attribute variation with process control limits that are set by
wood product customer requirements.
3.2
Analysis determines and graphically displays the attribute variation and control
limits calculated from measured data for the specified wood manufacturing
process stage.
element 4
Review the sampling system and recommend improvements to ensure wood product
customer requirements are met consistently.
performance criteria
4.1
Review compares customer requirements with wood manufacturing process
capability and identifies areas for improvement.
4.2
Review ranks root causes of wood manufacturing variability based on severity
of non conformance to customers specifications.
4.3
Review recommends improvements to materials and wood manufacturing
processes to ensure customer requirements are exceeded.
 New Zealand Qualifications Authority 2016
20277
28-Jun-16
4 of 4
WOOD MANUFACTURING
Design a statistical process control
system to monitor and improve quality
in wood manufacturing
Comments on this unit standard
Please contact Competenz at info@competenz.org.nz if you wish to suggest changes to
the content of this unit standard.
Please Note
Providers must be accredited by the Qualifications Authority or a delegated interinstitutional body before they can register credits from assessment against unit standards
or deliver courses of study leading to that assessment.
Industry Training Organisations must be accredited by the Qualifications Authority before
they can register credits from assessment against unit standards.
Accredited providers and Industry Training Organisations assessing against unit standards
must engage with the moderation system that applies to those standards.
Accreditation requirements and an outline of the moderation system that applies to this
standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The
AMAP also includes useful information about special requirements for providers wishing to
develop education and training programmes, such as minimum qualifications for tutors and
assessors, and special resource requirements.
This unit standard is covered by AMAP 0173
http://www.nzqa.govt.nz/framework/search/index.do.
which can
be
accessed at
 New Zealand Qualifications Authority 2016